Synthesis of polyacrylonitrile mediated by manganese(III) acetylacetonate (Mn(acac)₃) and 2‐cyanoprop‐2‐yl dithionaphthalenoate

Abstract

2-Cyanoprop-2-yl dithionaphthalenoate (CPDN) was successfully used as the chain transfer agent to prepare polyacrylonitrile in combination with manganese(III) acetylacetonate (Mn(acac) 3 ) as the initiator. The novel polymerization exhibited well "living"/controlled characteristics. The polymerization behavior was revealed to comply with features of reversible addition-fragmentation chain transfer polymerization process. Mn(acac) 3 played a key role as the initiator rather than the radical trapping agent in polymerization and exhibited better control performance than azo-initiator. The narrowest molecular

Performance of Manganese(III) Acetylacetonate in Solvent-Borne and High-Solid Alkyd Formulations

“…This work is focused on application of manganese(III) acetylacetonate (Mn, Scheme 1, Formula a). Such compound is known as initiator of radical polymerizations [15][16][17][18], mediator in organic synthesis [19,20] and catalyst of oxidation reactions [21,22]. Patent literature reports application of acetylacetone solution of Mn in alkyd-based paints, where it performs as the primary drier [23].…”

Visible‐Light‐Induced, Manganese‐Catalyzed Tandem Cyclization of 2‐Biphenyl Isocyanides with Cyclopropanols for the Synthesis of 6‐β‐Ketoalkyl Phenanthridines

“…The promising results push us to try the reaction utilizing various Mn catalysts such as Mn 2 (CO) 10 , Mn(OAc) 2 , MnF 3 , MnCl 2 , and MnCO 3 (entries 3-7), unfortunately, no better result was obtained. Next, we investigated the reaction in other solvent, such as t BuOH, MeOH, DMF, 1,4-dioxane, DCE, CH 2 Cl 2 , THF, cyclohexane, and toluene (entries [8][9][10][11][12][13][14][15][16]. Solvent screening showed that protic polar solvent t BuOH and MeOH were also suitable for this reaction.…”

“…Recently, Mn(acac) 3 was reported as a radical initiator in inorganic chemistry and polymer chemistry. [13] Using catalytic amounts of Mn(acac) 3 as a radical initiator is an attractive choice in the area of synthetic organic chemistry.…”

“…J = 2.0 Hz, 1H), 7.78 (t, J = 7.6 Hz, 1H), 7.65 (t, J = 7.6 Hz, 1H), 7.51 (dd, J = 8.8, 1.8 Hz, 1H), 7.37-7.28 (m, 5H),3.96 (s, 2H),3.62 (t, J = 6.4 Hz, 2H), 3.18 (t, J = 6.4 Hz, 2H) 13. C NMR (100 MHz, CDCl 3 ) δ 207.8, 160.5, 144.1, 134.6, 134.0, 132.1, 130.7, 129.6, 128.8, 128.7, 127.6, 127.0, 126.8, 125.8, 125.3, 123.3, 122.3, 122.1, 50.7, 38.3, 28.9.…”

Cobalt(iii) acetylacetonate initiated RAFT polymerization of acrylonitrile and its application in removal of methyl orange after electrospinning

“…22 Theoretically, PAN with relatively broad MWDs usually has a wide distribution of hydrodynamic radii and relaxation times of chains in solution. 39 In this work, we rst synthesized PAN with Co(acac) 3 as the initiator instead of azo compounds and 2-cyanoprop-2-yl dithionaphthalenoate (CPDN) as the RAFT agent. 23 Compared with synthesis by RP techniques, electrospinning of polymers based upon reversible-deactivation radical polymerization (RDRP) techniques can produce continuous nFs that are exceptionally long and uniform in diameter with inherent excellent control over MW and MWDs.…”